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Heart|Natural|GIA

0.31ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1563394559

Certificate GIA 1563394559

Diamond specifications and retailer prices

From €237 EUR
₹25,165 INR
As of November 1, 2026
Save €529 EUR (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,270 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.31ct natural heart diamond

This 0.31ct natural heart sits in the sub-half-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563394559. Listed at 12 retailers as of November 1, 2026, with a 223% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.31
Carat
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1563394559
Dimensions3.94 × 4.59 × 2.85 mm
L/W Ratio1.16
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
3.94 mm4.59 mm0.31 ctD / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1563394559
Side View
Table 61.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,270 EUR|Low: €236 EUR|High: €1,270 EUR|Avg: €513 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2€237 EUR
Retailer 10€331 EUR
Retailer 9€357 EUR
Retailer 8€370 EUR
Retailer 3€382 EUR
Retailer 5€427 EUR
Retailer 11€446 EUR
Retailer 7€454 EUR
Retailer 4€671 EUR
Retailer 6€765 EUR
NZ Jewellers€1,270 EUR

33 data points across 11 retailers

12 retailers€237 EUR to €765 EUR

A
Cheapest Retailer
-
€237 EUR
₹25,165 INR
A
Retailer 2
-
€331 EUR
$370 USD
View
B+
Retailer 3
-
€357 EUR
$399 USD
View
B+
Retailer 4
-
€370 EUR
$413 USD
View
B+
Retailer 5
-
€382 EUR
$427 USD
View
B+
Retailer 6
-
€427 EUR
£376 GBP
View
B+
Retailer 7
-
€446 EUR
$498 USD
View
B+
Retailer 8
-
€454 EUR
£400 GBP
View
B
Retailer 9
-
€458 EUR
$512 USD
View
B
Retailer 10
-
€671 EUR
£590 GBP
View
B
Retailer 11
-
€765 EUR
£673 GBP
View
Most Expensive
NZ Jewellers
dcd3039b-ca9c-4229-a5bd-cd82c731c866 · Oct 30
€1,270 EUR
$1,419 USD
View
Price under review
11 more retailers have this diamond
Prices start from €237 EURSave up to €529 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.31ct Heart
€237 EUR